.cont{
	background: -webkit-linear-gradient(top,white,skyblue,lightblue);
	background: -moz-linear-gradient(top,white,skyblue,lightblue);
    background:linear-gradient(to bottom,white,skyblue,lightblue);
}
/*标题B*/
.lianxi{
	color: #fff;
	height: 45px;
	width: 990px;
	border-bottom:2px solid blue;
	background: -webkit-linear-gradient(left,skyblue,blue,skyblue);
	background: -moz-linear-gradient(left,skyblue,blue,skyblue);
	background:linear-gradient(to right,skyblue, blue,skyblue);
	background-size: 100%;
}
h1{
	text-align: center;
	font:normal normal 20px/45px "微软雅黑";
}
.tb{
	margin-left: 55px;
	font-size: 16px;
	color: black;
}
.tb td{
	border-bottom: 1px dashed #daa;
}
.tb a{
	color: black;
}